# Vantio Gate MCP server

> Allows an AI client to perform dry-run policy evaluations for agent security without live enforcement.

- Repository: https://github.com/vantioai/vantio-open-core
- Page: https://hostedmcp.org/servers/vantioai/vantio-open-core
- Transport: stdio
- Stars: 2
- Latest version: 0.1.0

## Install

### Claude Code

```sh
claude mcp add --env VANTIO_API_KEY=<YOUR_VANTIO_API_KEY> vantio-open-core -- npx -y @vantio/gate-mcp
```

### Cursor (`~/.cursor/mcp.json`)

```json
{
  "mcpServers": {
    "vantio-open-core": {
      "command": "npx",
      "args": [
        "-y",
        "@vantio/gate-mcp"
      ],
      "env": {
        "VANTIO_API_KEY": "<YOUR_VANTIO_API_KEY>"
      }
    }
  }
}
```

### VS Code (`.vscode/mcp.json`)

```json
{
  "servers": {
    "vantio-open-core": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@vantio/gate-mcp"
      ],
      "env": {
        "VANTIO_API_KEY": "<YOUR_VANTIO_API_KEY>"
      }
    }
  }
}
```

### Claude Desktop (`claude_desktop_config.json`)

```json
{
  "mcpServers": {
    "vantio-open-core": {
      "command": "npx",
      "args": [
        "-y",
        "@vantio/gate-mcp"
      ],
      "env": {
        "VANTIO_API_KEY": "<YOUR_VANTIO_API_KEY>"
      }
    }
  }
}
```

### Codex (`~/.codex/config.toml`)

```toml
[mcp_servers.vantio-open-core]
command = "npx"
args = ["-y", "@vantio/gate-mcp"]

[mcp_servers.vantio-open-core.env]
VANTIO_API_KEY = "<YOUR_VANTIO_API_KEY>"
```

### Gemini CLI (`~/.gemini/settings.json`)

```json
{
  "mcpServers": {
    "vantio-open-core": {
      "command": "npx",
      "args": [
        "-y",
        "@vantio/gate-mcp"
      ],
      "env": {
        "VANTIO_API_KEY": "<YOUR_VANTIO_API_KEY>"
      }
    }
  }
}
```

## Environment variables

| Name | Required | Secret | Description |
|---|---|---|---|
| `VANTIO_API_KEY` | no | yes | Optional Pro API key for gate_get_policy / gate_residual_risk against your control plane |
| `VANTIO_API_BASE` | no | no | Optional Pro API base URL (default https://api.vantio.ai) |

## FAQ

### Does using Optics require an account or API key?

No, the free version of Optics does not require an account or an API key.

### Can Vantio Optics block outbound calls?

No, Optics is an observability tool that records outbound call details but does not block actions.